Overview

overview

10

Static

static

3

tmpixispgqy.exe

windows10-ltsc_2021-x64

10

tmpixispgqy.exe

windows10-2004-x64

10

tmpixispgqy.exe

windows11-21h2-x64

10

Analysis

  • max time kernel
    150s
  • max time network
    151s
  • platform
    windows11-21h2_x64
  • resource
    win11-20260513-en
  • resource tags

    arch:x64arch:x86image:win11-20260513-enlocale:en-usos:windows11-21h2-x64systemwindows
  • submitted
    02/06/2026, 03:22

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General

  • Target
    tmpixispgqy.exe
  • Size 556KB
  • Sample260602-dwxt9ad17m
  • SHA256 399d126766aee48deab0db3c6c69e76b9aa7b14107f677a5db1baba67594a772
  • MD5 SHA1 SHA512 SSDEEP TLSH
Score
10/10
defense_evasiondiscoverypykspapersistenceprivilege_escalationtrojanworm

Malware Config

Signatures

  • Family: Pykspa

    Pykspa is a worm spreads via Skype uses DGA and it's written in C++.

    wormpykspa
  • Detect Pykspa worm 2 IoCs
    worm
  • Modifies WinLogon for persistence 2 TTPs 8 IoCs
    persistence
  • UAC bypass 3 TTPs 17 IoCs
    defense_evasiontrojan
  • Adds policy Run key to start application 2 TTPs 39 IoCs
    persistence
  • Disables RegEdit via registry modification 6 IoCs
    defense_evasion
  • Executes dropped EXE 28 IoCs
  • Impair Defenses: Safe Mode Boot 1 TTPs 6 IoCs
    defense_evasion
  • Adds Run key to start application 2 TTPs 64 IoCs
    persistence
  • Checks whether UAC is enabled 1 TTPs 16 IoCs
    defense_evasiontrojan
  • Hijack Execution Flow: Executable Installer File Permissions Weakness 1 TTPs 3 IoCs

    Possible Turn off User Account Control's privilege elevation for standard users.

    defense_evasionpersistenceprivilege_escalation
  • Looks up external IP address via web service 6 IoCs

    Uses a legitimate IP lookup service to find the infected system's external IP.

  • Drops file in System32 directory 60 IoCs
  • Drops file in Program Files directory 4 IoCs
  • Drops file in Windows directory 60 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 18 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

    discovery
  • Modifies registry class 1 IoCs
  • Suspicious behavior: EnumeratesProcesses 64 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 10 IoCs
  • System policy modification 1 TTPs 46 IoCs
    defense_evasion

Processes

  • C:\Users\Admin\AppData\Local\Temp\tmpixispgqy.exe
    "C:\Users\Admin\AppData\Local\Temp\tmpixispgqy.exe"
    1⤵
    • System Location Discovery: System Language Discovery
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of WriteProcessMemory
    PID:2152
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\users\admin\appdata\local\temp\tmpixispgqy.exe*"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Disables RegEdit via registry modification
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Hijack Execution Flow: Executable Installer File Permissions Weakness
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System Location Discovery: System Language Discovery
      • Suspicious use of WriteProcessMemory
      • System policy modification
      PID:3240
      • C:\Users\Admin\AppData\Local\Temp\nsvzis.exe
        "C:\Users\Admin\AppData\Local\Temp\nsvzis.exe" "-C:\Users\Admin\AppData\Local\Temp\zobpiclbtiivznvz.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Impair Defenses: Safe Mode Boot
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Hijack Execution Flow: Executable Installer File Permissions Weakness
        • Drops file in System32 directory
        • Drops file in Program Files directory
        • Drops file in Windows directory
        • System Location Discovery: System Language Discovery
        • Suspicious behavior: EnumeratesProcesses
        • Suspicious use of AdjustPrivilegeToken
        • System policy modification
        PID:2368
      • C:\Users\Admin\AppData\Local\Temp\nsvzis.exe
        "C:\Users\Admin\AppData\Local\Temp\nsvzis.exe" "-C:\Users\Admin\AppData\Local\Temp\zobpiclbtiivznvz.exe"
        3⤵
        • Modifies WinLogon for persistence
        • UAC bypass
        • Adds policy Run key to start application
        • Disables RegEdit via registry modification
        • Executes dropped EXE
        • Adds Run key to start application
        • Checks whether UAC is enabled
        • Hijack Execution Flow: Executable Installer File Permissions Weakness
        • Drops file in System32 directory
        • Drops file in Windows directory
        • System policy modification
        PID:3164
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\users\admin\appdata\local\temp\tmpixispgqy.exe"
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:1808
  • C:\Windows\ngxpmkxrngkbjbnvewjc.exe
    ngxpmkxrngkbjbnvewjc.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3616
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\ngxpmkxrngkbjbnvewjc.exe*."
      2⤵
      • Executes dropped EXE
      PID:4140
  • C:\Windows\cwohfesnkejbkdqzjcqkc.exe
    cwohfesnkejbkdqzjcqkc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2936
  • C:\Windows\zobpiclbtiivznvz.exe
    zobpiclbtiivznvz.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2104
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\zobpiclbtiivznvz.exe*."
      2⤵
      • Executes dropped EXE
      PID:2100
  • C:\Windows\pgvlgcnfzqshndntaq.exe
    pgvlgcnfzqshndntaq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4560
  • C:\Windows\explorer.exe
    Explorer.exe
    1⤵
    • Modifies registry class
    PID:2508
  • C:\Users\Admin\AppData\Local\Temp\ngxpmkxrngkbjbnvewjc.exe
    C:\Users\Admin\AppData\Local\Temp\ngxpmkxrngkbjbnvewjc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2108
  • C:\Users\Admin\AppData\Local\Temp\pgvlgcnfzqshndntaq.exe
    C:\Users\Admin\AppData\Local\Temp\pgvlgcnfzqshndntaq.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2600
  • C:\Windows\gwkztoypiyznshqvb.exe
    gwkztoypiyznshqvb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:4528
  • C:\Users\Admin\AppData\Local\Temp\cwohfesnkejbkdqzjcqkc.exe
    C:\Users\Admin\AppData\Local\Temp\cwohfesnkejbkdqzjcqkc.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3408
  • C:\Windows\cwohfesnkejbkdqzjcqkc.exe
    cwohfesnkejbkdqzjcqkc.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3464
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\cwohfesnkejbkdqzjcqkc.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:2996
  • C:\Windows\zobpiclbtiivznvz.exe
    zobpiclbtiivznvz.exe
    1⤵
    • Executes dropped EXE
    PID:4328
  • C:\Users\Admin\AppData\Local\Temp\asizvsexskndkbmtbse.exe
    C:\Users\Admin\AppData\Local\Temp\asizvsexskndkbmtbse.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:2408
  • C:\Users\Admin\AppData\Local\Temp\zobpiclbtiivznvz.exe
    C:\Users\Admin\AppData\Local\Temp\zobpiclbtiivznvz.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:3272
  • C:\Windows\ngxpmkxrngkbjbnvewjc.exe
    ngxpmkxrngkbjbnvewjc.exe
    1⤵
    • Executes dropped EXE
    PID:336
  • C:\Windows\pgvlgcnfzqshndntaq.exe
    pgvlgcnfzqshndntaq.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3904
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\pgvlgcnfzqshndntaq.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:3708
  • C:\Users\Admin\AppData\Local\Temp\gwkztoypiyznshqvb.exe
    C:\Users\Admin\AppData\Local\Temp\gwkztoypiyznshqvb.exe
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    PID:1536
  • C:\Windows\asizvsexskndkbmtbse.exe
    asizvsexskndkbmtbse.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:3968
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\asizvsexskndkbmtbse.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:1288
  • C:\Windows\gwkztoypiyznshqvb.exe
    gwkztoypiyznshqvb.exe .
    1⤵
    • Executes dropped EXE
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:2528
    • C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
      "C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe" "c:\windows\gwkztoypiyznshqvb.exe*."
      2⤵
      • Modifies WinLogon for persistence
      • UAC bypass
      • Adds policy Run key to start application
      • Executes dropped EXE
      • Adds Run key to start application
      • Checks whether UAC is enabled
      • Drops file in System32 directory
      • Drops file in Windows directory
      • System policy modification
      PID:4808
  • C:\Windows\asizvsexskndkbmtbse.exe
    asizvsexskndkbmtbse.exe
    1⤵
    • Executes dropped EXE
    PID:5060

Network

        MITRE ATT&CK Enterprise v16

        Reconnaissance

        Resource Development

        Initial Access

        Execution

        Persistence

        Boot or Logon Autostart Execution

        3
        T1547

        Registry Run Keys / Startup Folder

        2
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Privilege Escalation

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Boot or Logon Autostart Execution

        3
        T1547

        Registry Run Keys / Startup Folder

        2
        T1547.001

        Winlogon Helper DLL

        1
        T1547.004

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Defense Evasion

        Abuse Elevation Control Mechanism

        1
        T1548

        Bypass User Account Control

        1
        T1548.002

        Hijack Execution Flow

        1
        T1574

        Executable Installer File Permissions Weakness

        1
        T1574.005

        Impair Defenses

        2
        T1562

        Disable or Modify Tools

        1
        T1562.001

        Safe Mode Boot

        1
        T1562.009

        Modify Registry

        5
        T1112

        Credential Access

        Discovery

        System Information Discovery

        2
        T1082

        System Location Discovery

        1
        T1614

        System Language Discovery

        1
        T1614.001

        Lateral Movement

        Collection

        Command and Control

        Exfiltration

        Impact

        Replay Monitor

        Loading Replay Monitor...

        Downloads

        nsvzis.exe
        • Path C:\Users\Admin\AppData\Local\Temp\nsvzis.exe
        • Size 704KB
        • SHA256 71501c704efb440cb5b8813acb3327d354eff531106e233cdad2384a49289795
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        zhgpsrrajrq.exe
        • Path C:\Users\Admin\AppData\Local\Temp\zhgpsrrajrq.exe
        • Size 320KB
        • SHA256 0cc02d34d5fd4cf892fed282f98c1ad3e7dd6159a8877ae5c46d3f834ed36060
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download

        twxzgolpvymnfhdvoqnqrtaifj.sgh
        • Path C:\Users\Admin\AppData\Local\twxzgolpvymnfhdvoqnqrtaifj.sgh
        • Size 272B
        • SHA256 993b75f845caddc77022d7e8b32c87ba04e2b56e3171aa7d9bc43c887ceef433
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        uiuhzsapgutfivcfjweserjckzqedpsfmptgo.obt
        • Path C:\Users\Admin\AppData\Local\uiuhzsapgutfivcfjweserjckzqedpsfmptgo.obt
        • Size 3KB
        • SHA256 b1733fc4f4afe4c6f5f8b584e42d6a92b474eb5bb40234825f768856d6beab78
        • MD5 SHA1 SHA512 TLSH
        Submit Download

        pgvlgcnfzqshndntaq.exe
        • Path C:\Windows\SysWOW64\pgvlgcnfzqshndntaq.exe
        • Size 556KB
        • SHA256 399d126766aee48deab0db3c6c69e76b9aa7b14107f677a5db1baba67594a772
        • MD5 SHA1 SHA512 SSDEEP TLSH
        Submit Download